<template>
  <div class="app-container">
    <upload-excel-component :on-success="handleSuccess" :before-upload="beforeUpload" />
    <el-table :data="tableData" border highlight-current-row style="width: 100%;margin-top:20px;">
      <el-table-column v-for="item of tableHeader" :key="item" :prop="item" :label="item" />
    </el-table>
  </div>
</template>

<script>
import UploadExcelComponent from '@/components/UploadExcel/index.vue'
import { importEmployee } from '@/api/employees'
import { formatExcelDate } from '@/utils'

export default {
  name: 'UploadExcel',
  components: { UploadExcelComponent },
  data() {
    return {
      tableData: [],
      tableHeader: []
    }
  },
  methods: {
    beforeUpload(file) {
      const isLt1M = file.size / 1024 / 1024 < 1

      if (isLt1M) {
        return true
      }

      this.$message({
        message: 'Please do not upload files larger than 1m in size.',
        type: 'warning'
      })
      return false
    },
    handleSuccess({ results, header }) {
      this.tableData = results
      this.tableHeader = header
      // 格式化js数据
      const data = this.formatExcel(results)
      // 发送请求携带格式化的数据实现批量添加
      this.addEmployee(data)
    },
    // 发送请求实现批量添加
    async addEmployee(data) {
      try {
        const res = await importEmployee(data)
        console.log('importEmployee', res)
        // 保存数据
      } catch (err) {
        console.log('importEmployee', err)
      }
    },
    formatExcel(data) {
      // 1.映射对象,根据映射对象找英文键
      const mapInfo = {
        '入职日期': 'timeOfEntry',
        '手机号': 'mobile',
        '姓名': 'username',
        '转正日期': 'correctionTime',
        '工号': 'workNumber',
        '部门': 'departmentName',
        '聘用形式': 'formOfEmployment'
      }

      // 2.先获取所有的中文的键
      const result = data.map(item => {
      // 获取到中文的键
        const zh_keys = Object.keys(item)
        console.log(zh_keys)
        // 定义一个新的空对象存储新的数据
        const new_obj = {}

        zh_keys.forEach(zh_key => {
        // 获取到英文的键
          console.log(mapInfo[zh_key], 'mapInfo[zh_key]')
          const en_key = mapInfo[zh_key]
          if (en_key === 'timeOfEntry' || en_key === 'correctionTime') {
            new_obj[en_key] = formatExcelDate(item[zh_key])
          } else {
            new_obj[en_key] = item[zh_key]
          }
        })
        return new_obj
      })
      return result
    }
  }
}
</script>
